Therapeutic Medical Gases CH12 Exam
Questions with correct Answers 2026/2027
A+ Graded 100% Verified
1. Why is the ability to cough decreased with Heliox therapy?
lack of turbulent flow
2. Inhaled nitric oxide therapy generally does NOT cause which of the following?
decreases systemic blood pressure
3. Which of the following could be caused due to abrupt discontinuation of inhaled nitric
oxide?
rebound pulmonary hypertension
4. Acute pulmonary edema is MOST likely treated with which of the following?
oxygen therapy with CPAP
5. Due to nitrogen washout, which of the following is MOST likely to be associated with
prolonged 100% oxygen administration?
absorption atelectasis
6. All EXCEPT which of the following are low-flow devices?
jet mixing mask
7. Which of the following is NOT a condition that causes right-to-left shunt?
pulmonary embolism
8. If a jet nebulizer is set to deliver 60% oxygen and the oxygen flow meter has been
titrated to 10 l/m, what is the total flow through the system?
20 L/m
, 9. When a patient receives a high concentration of oxygen for an extended amount of
time, it is possible a CXR may reveal a decrease in aeration due to which of the following
reasons?
absorption atelectasis
10. A precise FiO2 can be delivered with which of the following delivery devices?
an air-entrainment mask
11. Administration of oxygen to patients with COPD that raises their PaO2 above 70
mmHg can cause oxygen-induced hypercapnia due to which of the following
mechanisms?
depression of the peripheral
12. Which of the following tests will provide a PaO2 value?
arterial blood gas
13. A drop in cardiac output would MOST likely cause which of the following types of
hypoxia?
circulatory hypoxia
14. For emergencies in which moderate FiO2s are required, which of the following
devices would you select?
simple mask
15. In which of the following situations would it NOT be appropriate to use a nasal
cannula?
treatment for CO poisoning
16. Which of the following is MOST likely to transmit bacteria?
an LVN
17. Which of the following is MOST likely caused by chronic hypoxemia?
polycythemia
Questions with correct Answers 2026/2027
A+ Graded 100% Verified
1. Why is the ability to cough decreased with Heliox therapy?
lack of turbulent flow
2. Inhaled nitric oxide therapy generally does NOT cause which of the following?
decreases systemic blood pressure
3. Which of the following could be caused due to abrupt discontinuation of inhaled nitric
oxide?
rebound pulmonary hypertension
4. Acute pulmonary edema is MOST likely treated with which of the following?
oxygen therapy with CPAP
5. Due to nitrogen washout, which of the following is MOST likely to be associated with
prolonged 100% oxygen administration?
absorption atelectasis
6. All EXCEPT which of the following are low-flow devices?
jet mixing mask
7. Which of the following is NOT a condition that causes right-to-left shunt?
pulmonary embolism
8. If a jet nebulizer is set to deliver 60% oxygen and the oxygen flow meter has been
titrated to 10 l/m, what is the total flow through the system?
20 L/m
, 9. When a patient receives a high concentration of oxygen for an extended amount of
time, it is possible a CXR may reveal a decrease in aeration due to which of the following
reasons?
absorption atelectasis
10. A precise FiO2 can be delivered with which of the following delivery devices?
an air-entrainment mask
11. Administration of oxygen to patients with COPD that raises their PaO2 above 70
mmHg can cause oxygen-induced hypercapnia due to which of the following
mechanisms?
depression of the peripheral
12. Which of the following tests will provide a PaO2 value?
arterial blood gas
13. A drop in cardiac output would MOST likely cause which of the following types of
hypoxia?
circulatory hypoxia
14. For emergencies in which moderate FiO2s are required, which of the following
devices would you select?
simple mask
15. In which of the following situations would it NOT be appropriate to use a nasal
cannula?
treatment for CO poisoning
16. Which of the following is MOST likely to transmit bacteria?
an LVN
17. Which of the following is MOST likely caused by chronic hypoxemia?
polycythemia
